Senior Front-End Engineer (React Lead)

Intelliswift - An LTTS Company; Canada; On-site; CAD 80,000 - 110,000; Full time

Job summary

A technology solutions provider in Canada is seeking a Senior Front-End Engineer to lead the development of a new React-based platform. The candidate will drive front-end architecture and optimization while collaborating with UX and backend teams. Strong experience with component libraries and performance metrics is essential. This role offers the opportunity to mentor junior engineers and make an impact on high-performance user interfaces.

Qualifications

• Strong expertise in building enterprise-scale component libraries.
• Experience integrating React with headless CMS backends.
• Deep understanding of performance optimization and Core Web Vitals.

Responsibilities

• Lead architecture and development of the React front end.
• Translate UX wireframes into accessible components.
• Build high-performance, mobile-optimized UIs.

Skills

React development

TypeScript

Performance optimization

Accessibility

Responsive design

Testing (Jest/RTL)

Tools

Storybook

Drupal

Job description

The Senior Front-End Engineer (React Lead) drives the front‑end architecture, component library, and implementation of the new React-based platform. This role leads FE development for and supports PIM/DAM retrofitting and i18n in later releases. They will work closely with UX, backend (Drupal), DevOps, and QA teams to deliver high‑performance, accessible, scalable experiences.

Key Responsibilities

• Lead architecture and development of the React front end, including component architecture, state management, and reusable pattern libraries.
• Translate UX wireframes and design system tokens into pixel‑perfect, accessible components.
• Build high‑performance, mobile‑optimized UIs aligned to Core Web Vitals targets (LCP, CLS thresholds).
• Integrate React components with Drupal APIs/JSON:API layer and future PIM/DAM feeds.
• Oversee complex templates such as product pages, parametric search UI, documentation pages, and role-based journeys.
• Implement SEO, structured data, semantic markup, and schema for engineer-friendly discoverability.
• Guide integration and testing of React with localization/i18n frameworks during R4.
• Support DevOps in CI/CD integration, performance budgets, and code quality automation.
• Mentor junior FE engineers, perform code reviews, and maintain coding standards.

Required Qualifications

• Strong expertise in building enterprise-scale component libraries (Storybook or equivalent).
• Experience integrating React with headless CMS backends (Drupal preferred).
• Deep understanding of performance optimization, Lighthouse improvements, and Core Web Vitals.
• Strong TypeScript, accessibility, responsive design, and testing (Jest/RTL) skills.

Preferred

• Experience in B2B/technical product environments.
• Familiarity with Algolia/AI search UI patterns, Segment CDP, and localization frameworks.